private void button1_Click(object sender, EventArgs e)
        {
            IFigureFactory figures = new FigureFactory();

            for (int i = 0; i < masPoint.Length; i++)
            {
                masPoint[i] = figures.RandFigure();
            }
            // Random r = new Random();

            panel1.CreateGraphics().Clear(Control.DefaultBackColor);
            foreach (var item in masPoint)
            {
                DrawFigure.DrawFigureOnControl(panel1, item);
            }
        }